In an interview with Fox News’ Martha Maccallum, Gowdy said when he was still in Congress, he saw an FBI spreadsheet that laid out all of the specific claims in the dossier, which former British spy Christopher Steele authored. The spreadsheet also cited information the FBI believed corroborated Steele’s salacious report, he said.

“I’ve seen the spreadsheet, Martha, I have seen each factual assertion listed in that dossier, and then I’ve seen the FBI’s justification. And when you’re citing newspaper articles as corroboration for a factual assertion that you have made, you don’t need an FBI agent to go do a Google search,” said Gowdy, who served on the House Intelligence Committee and is a Fox News contributor.

“When the name Sidney Blumenthal is included as part of your corroboration, and when you’re the world’s leading law enforcement agency, you have a problem.”

Gowdy did not further explain how the FBI used information from Blumenthal, but his claim could be a potential bombshell as investigators probe the FBI’s use of the dossier in its investigation of possible collusion between the Trump campaign and Russian government.

Gowdy did not mention if this directly related to the FBI's investigation into the Trump campaign or if it was related to the entire Trump-Russia investigation. But either way, Gowdy seems to find it problematic.